I can not activate my Wp Bakery page builder License because there is no product licensing tab on my dashboard. I've contacted Wp bakery directly, and they told me that I needed to contact the author of the gem theme.

This is the message Wp Bakery sent to me regarding this issue:

"The issue is because the product license tab at your end is disabled by the theme developer using vc_set_as_theme. You can get in touch with the theme developer and get rid of the above code from the theme to get it back. Once done, you can then activate the plugin license."